Respiratory mask



J. M. DEAN ET AL RESPIRATORY MASK Nov. 17 1925' Filed May 1. 1925 Patented Nov. 17, 1925.

UNITED STATES JOHN MANSFIELD DEAN AND ANDREW N. KITTRELLE, OF MEMPHIS, TENNESSEE. i

PATENT OFFICE.

RESPIRATORY MASK.

Application filed May 1, 1923. Serial No. 636,003.

I 0 all whom it may concern: 1

Be it known that we, JOHN MANSFIEL DEAN andANonnw N. Krr'rnnnLn, citizens of theUnited States, residing at Memphis, in the county of Shelby and State'of Tennessee, have invented certain new and useful Improvements in Respiratory Masks, of which the following is a specification.

This invention relates to respiratory masks and more particularly t'o 'masks for surgeons and dentists use during operations upon the mouth, throat nose or eyes.

The particular object of this device is to provide a mask having means whereby mild antiseptics may be retained therein in such a position that the air drawn in ,by the wearer will pass therethrough before being inhaled.

A further object is to provide an antiseptic carrying mask in which a provision is made for the insertion and removal of sterilized gauze or other absorbent material,

' impregnated with a mild, pleasant smelling antiseptic substance. between the nostrils of the wearer and the inlet apertures.

A still further object is to provide a mask which will comfortably conform to the outline of the face of the operator, covering as little space as possible, will not obstruct the view, easily kept clean, light of weight, strong, durable, and inexpensive to manufacture.

It is well known thatoperations upon the mouth, throat, nose or eyes bring the face of the operator and patient in comparatively close relation and where the patient is suffering from an infection of the oral. or nasal cavity, the operator is in danger of contracting the disease unless proper precautions are taken to intercept the passage of any germs which may be expelled by the patient, and it is the object of this device safeguard the operator from such dangers.

Further where no diseased condition exists, halitosis may be present in either the patient or operator, and by using a device is constructed of some lightweight mat ew Fig. 2 is a rear view of the mask, and F 1g. 31s a vertical transversev section thereof.

Like, numerals of reference refer tolike parts throughout the several viewsof the drawings.

The respirator consists of an upper nose enclosing portion 1, of inverted, substant1al ly V-shaped contour and alower mouth covering' portion 2 of circular shield like form.

The portion 1 is preferably of soft rubber and shaped to conform to the general con tour of the nosewhile the lower portionj2 rial, preferably celluloid; thatalso being' shaped to snugly fit the features below and on either side of the mouth. These portions v are cemented together at their contacting surfaces.

The portion 2, is of substantially circular contour and dished or concave having the side wings 3, which are adapted to lie against the cheeks, and the lower edge out out as shown at 4, to accommodate the chin.

The upper edge of the portion 2, has formed integral therewith the offset portion 5, extending forwardly at right angles there from and having its upper and lower side provided with apertures 6 which open into the chamber 7, which in turn opens into the interior of the mask. Sterilizedgauze or cotton 8, impregnated with a suitable mild antiseptic oil such as eucalyptus, is to be placed in this, chamber.

The portion 1, which covers the nose, is provided at its under side 9, with 'a thickened portion 10 which [its snugly beneath and is cemented to'the offset portion 5 of the lower portion 2, and is provided with passages 11 which align with the lower pas sages 6, for establishing communication with the atmosphere.

Fixed to the side edges of the portion 2, at suitable points are loop members 12 to which are hingedly attached hooked retaining members 13 for retaining the mask in; position. It maybe seen that by using the hooked members instead of a head band as is customary, the mask may be put on and, removed quickly and with little trouble.

Having described the device, in accordance with the drawing, it is to be understood that various changes and modifications may be made in the same without departing fromthe spirit of the invention as claimed.

What is claimed is 1. In a respirator, a unitary structure comprising an upper nose enclosing elastic portion having a plurality of apertures at the lower end tliereof,--and a lower mouthcovering resilient portion, means to provide a forwardly extending semicircular antiseptic chamber projecting into and resting upon the lower end of and enclosed by-said nose enclosing portion, said chamber open-. ing into the mouth covering portion for they insertion of antiseptic carrying material, and having a plurality of apertures through the upper and lower sides-thereof, the lower apertures aligning with the apertures in the" nose enclosing portion and the otheraper; tui'es opening upwardly through the nose enclosingportion, andrineans hingedly 'at-. tached to said resilient portion for retaining the same imposition when in use.

2. In a respirator, a unitary structure. comprising air inverted substantially V shaped nose fitting and enclosing portion of soft fleXiblelinateria-l, open at its; rear end andprovidedat its front end with an QPQP" tured 'lower front wall, a mouth enclosingportion of resilient iiiaterialzand of aCllCLlltLI shield like form, adapted to snugly engage over the lower portion of the face, and de pending trom and having its upper part? provided with -ineans extending upon the front .walliof the nose enclosing portion to provide an antiseptic chamber, said chamber-having-a plurality of apertures through its upper and lower sides, the apertures in the lower side aligningwitlifthe apertures in the nose enclosing portion, and the apertures in the upper side opening into the nose enclosing v1 portion, and means attached to the side of said portion of-resilient materialfor retaining the structure in position when in use, said nose enclosing portion be ing of materially less width than the-said .mouthenclosing portion and located at the )per' portion and upon the longitudinal center thereof,

In testimony whereof, *we afiixg our signa tures hereto;

ANDREW N itirrieniiring 

